<template>
    <el-form size="small">
        <el-form-item>
            <el-radio v-model='radioValue' :label="1">
                小时，允许的通配符[, - * /]
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="2">
                周期从
                <el-input-number v-model='cycle01' :min="0" :max="22" /> -
                <el-input-number v-model='cycle02' :min="cycle01 ? cycle01 + 1 : 1" :max="23" /> 小时
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="3">
                从
                <el-input-number v-model='average01' :min="0" :max="22" /> 小时开始，每
                <el-input-number v-model='average02' :min="1" :max="23 - average01 || 0" /> 小时执行一次
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="4">
                指定
                <el-select clearable v-model="checkboxList" placeholder="可多选" multiple style="width:100%">
                    <el-option v-for="item in 24" :key="item" :value="item-1">{{item-1}}</el-option>
                </el-select>
            </el-radio>
        </el-form-item>
    </el-form>
</template>

<script>
export default {
    data() {
        return {
            radioValue: 1,
            cycle01: 0,
            cycle02: 1,
            average01: 0,
            average02: 1,
            checkboxList: [],
            checkNum: this.$options.propsData.check
        }
    },
    name: 'crontab-hour',
    props: ['check', 'cron'],
    methods: {
        // 单选按钮值变化时
        radioChange() {
            switch (this.radioValue) {
                case 1:
            this.$emit('update', 'hour', '*')
            break;
                case 2:
                    this.$emit('update', 'hour', this.cycleTotal);
                    break;
                case 3:
                    this.$emit('update', 'hour', this.averageTotal);
                    break;
                case 4:
                    this.$emit('update', 'hour', this.checkboxString);
                    break;
            }
        },
        // 周期两个值变化时
        cycleChange() {
            if (this.radioValue == '2') {
                this.$emit('update', 'hour', this.cycleTotal);
            }
        },
        // 平均两个值变化时
        averageChange() {
            if (this.radioValue == '3') {
                this.$emit('update', 'hour', this.averageTotal);
            }
        },
        // checkbox值变化时
        checkboxChange() {
            if (this.radioValue == '4') {
                this.$emit('update', 'hour', this.checkboxString);
            }
        }
    },
    watch: {
        'radioValue': 'radioChange',
        'cycleTotal': 'cycleChange',
        'averageTotal': 'averageChange',
        'checkboxString': 'checkboxChange'
    },
    computed: {
        // 计算两个周期值
        cycleTotal: function () {
            const cycle01 = this.checkNum(this.cycle01, 0, 22)
            const cycle02 = this.checkNum(this.cycle02, cycle01 ? cycle01 + 1 : 1, 23)
            return cycle01 + '-' + cycle02;
        },
        // 计算平均用到的值
        averageTotal: function () {
            const average01 = this.checkNum(this.average01, 0, 22)
            const average02 = this.checkNum(this.average02, 1, 23 - average01 || 0)
            return average01 + '/' + average02;
        },
        // 计算勾选的checkbox值合集
        checkboxString: function () {
            let str = this.checkboxList.join();
            return str == '' ? '*' : str;
        }
    }
}
</script>
